My M3 had the exact same problem. Blown Power board, not repairable. Only it never made it to 10 years. It’s a beautiful piece. Huge heat sinks, velvety smooth volume control. 2x mono design, Extremely versitle crossover and sub out piece of garbage. A dealer near me warned me to stay away from NAD and I didn’t listen. The factory kept it for 6 months before telling me to pound sand.
If you’re thinking about buying NAD think again. They are trash and don’t back up their products. Other than this I have no strong feelings on the matter.
If you’re thinking about buying NAD think again. They are trash and don’t back up their products. Other than this I have no strong feelings on the matter.